Doffing apparatus for buffer storing wound packages

Abstract

The invention relates to a doffing apparatus (99) for removing wound packages (21.1 - 21.3) comprising a synthetic thread (5.1, 5.2, 5.3), which can be wound by a winding apparatus (17) with a winding spindle (19.1, 19.2) onto a sleeve (18) to form at least one wound package (21.1, 21.3, 21.3), and having a buffer-storing apparatus (100), wherein the buffer-storing apparatus (100) has: a pushing-off apparatus (170) for pushing wound packages off the winding spindle (19.1, 19.2), a wound-package store (101) for buffer storing the wound package (21.1, 21.3, 21.3), a depositing device for depositing the wound package (21.1, 21.3, 21.3) in the wound-package store (100), wherein, by means of a pulsed movement of the depositing device (150), the wound package can be deposited in the wound-package store by way of the circumferential surface of the wound package. The invention also relates to an associated method and an associated spinning-stretching-texturing apparatus for producing crimped synthetic threads (5.1, 5.2, 5.3).

Description

[0001] Doffing device for temporarily storing winding spools

[0002] The invention relates to a doffing device for temporarily storing winding spools according to the preamble of claim 1.

[0003] Doffing devices are generally known from the state of the art.

[0004] DE195 05 838 A1 describes a textile machine for the continuous winding of synthetic threads, which has two winding spindles on each of which several empty tubes can be clamped one behind the other.

[0005] At the end of the winding cycle, the finished bobbins are pushed off to a storage device located in a free space between the machine front and the spindle housing front plane defined by the spindle housing front and are temporarily stored there.

[0006] A stationary, elongated dome serves as an intermediate storage device, onto which the coils can be plugged. This has the disadvantage that precise positioning and alignment of the associated components is necessary, which can regularly lead to malfunctions if the associated components are not correctly aligned to allow for proper storage on the dome.

[0007] WO 2013 / 083291 A2 describes a filament production system for filament spools comprising a production facility, a transport facility, and a storage facility for filament spools. The storage facility includes at least one movable doffing container for receiving multiple doffs from filament spools arranged one behind the other. The doffing container can be mounted on a self-propelled vehicle.

[0008] Here, too, the storage areas of the doffing container are designed for temporary storage of mandrels or spindles, requiring precise positioning of the corresponding winding spindle of a winding device with the mandrels of the movable storage device. This can also lead to problems, in particular, the time required to align the mandrels and the winding spindles to each other, and immediate doffing can lead to an interruption in winding.

[0009] It is therefore an object of the invention to provide a doffing device with which the above-mentioned problems can be solved.

[0010] It is a further object of the invention to provide a method for doffing winding spools with which the above-mentioned problems can also be solved.

[0011] It is a further object of the invention to provide a spin-draw texturing device for producing crimped synthetic threads, which is provided with a doffing device, or an associated method with which the above-mentioned problems can be solved.

[0012] With regard to the doffing device, the object is achieved according to the invention with a doffing device having the features of claim 1.

[0013] According to one aspect of the invention, a doffing device is provided for removing bobbins with a synthetic thread that can be wound onto an empty tube by a winding device with a winding spindle to form at least one bobbin, comprising an intermediate storage device, wherein the intermediate storage device has: a pushing device for pushing bobbins from the winding spindle, a bobbin storage device for temporarily storing the bobbin, a depositing device for depositing the bobbin in the bobbin storage device, wherein the bobbin can be deposited in the bobbin storage device over the circumferential surface of the bobbin by means of a pulsed movement of the depositing device. A bobbin can be an empty tube, a short bobbin that is only partially wound with synthetic fiber, and a full bobbin that has been wound with synthetic fiber to a predetermined diameter.

[0014] Doffing is the removal of a bobbin from the winding spindle of the winding device. Doffing can also include attaching tubes to the winding spindle, onto which the synthetic thread is to be wound.

[0015] A synthetic thread is understood here to be a thread extruded from a plastic melt by means of a spinning device that has spinnerets that form a plurality of filaments from the supplied plastic melt, which are then combined to form a thread. The doffing device can also be used in winding devices for natural fibers.

[0016] An impulse motion is understood here, in particular, to mean a movement of the winding coil caused by an impulse, causing the winding coil to roll. Winding coils usually have a circular circumferential surface, allowing them to roll over their circumferential surface.

[0017] Depositing the bobbin with a pulsed movement of the depositing device in the bobbin storage has the advantage that depositing can take place within a short period of time without having to interrupt the winding process. This is particularly advantageous when winding the high-denier synthetic thread is particularly fast and the bobbin must be doffed by the winding spindle at a high frequency, as no additional time is required for precise alignment of the depositing device with the winding spindle.

[0018] By accommodating a plurality of reel spools in the reel spool storage, which is preferably designed as a shelf—generally, at least three reel spools can be stored per shelf compartment—the reel spools to be stored do not need to be stored at the winding time frequency (up to 5 minutes), but can be stored in the reel spool storage or intermediate storage device at a significantly longer frequency (n times the winding time) and removed at a later time. Preferably, a fully loaded reel spool storage or intermediate storage device is exchanged for an empty reel spool storage or intermediate storage device within the winding time. This relieves the load on the downstream automation.

[0019] Advantageous embodiments of the doffing device result from the features claimed in the embodiments of the doffing device.

[0020] In a particularly preferred embodiment of the doffing device, the depositing device is movable between a parking position in which the depositing device is parked at the winding device and a depositing position in which the full bobbin can be deposited by the depositing device into the winding bobbin storage device, and / or wherein in the parking position the depositing device is positioned below the winding spindle and in the depositing position the depositing device is positioned in front of an end section of the winding spindle.

[0021] A deposit position is understood to be a position of the deposit device in which the bobbins can be deposited from the winding spindle onto the deposit device. The deposit device can, for example, be located in front of an end section of the winding spindle.

[0022] A parking position is defined as a position in which the lay-down device is parked in such a way that it does not interfere with the winding process on the winding device or with access to the winding device. The parking position can, for example, be below the winding spindle.

[0023] In a further particularly preferred embodiment of the doffing device, the depositing device can be moved from the depositing position into a tilting position, so that a winding spool can be deposited on the depositing device into the winding spool storage device.

[0024] A tilting position of the depositing device refers to a tilting of the depositing device, which causes an impulsive and rolling movement of the winding spool, allowing the winding spool to roll into the winding spool storage. This has the advantage that no additional devices are required, and the transfer of the winding spool from the depositing device to the winding spool storage is effortless.

[0025] According to a particular embodiment of the doffing device, the depositing device has a pushing device for moving the depositing device from the parking position into the depositing position and / or a lifting device for adjusting the height of the depositing device relative to the winding spool storage device into a level position.

[0026] The pusher device can be used to move the depositing device from the parking position to the depositing position for receiving the winding spool. A displacement piston can be provided as the pusher device. The depositing device can also have its own drive to move the depositing device to the depositing position and back to the parking position.

[0027] A lifting device allows the height of the depositing device to be adjusted relative to the winding spool storage, allowing for height adjustment of the depositing device relative to the winding spool storage. Once the height or level adjustment has been completed, the winding spools can be rolled from the depositing device into the winding spool storage.

[0028] In a particularly preferred embodiment of the doffing device, the winding spool storage device has a plurality of storage compartments and / or the storage compartment of the winding spool storage device is height-adjustable by means of a lifting device, in particular a paternoster, so that the storage compartment can be brought to the level of the depositing device.

[0029] Preferably, the winding spool storage is designed in the form of a shelf, so that feeding and removing winding spools can be carried out without any effort.

[0030] According to a particular embodiment of the doffing device, the depositing device comprises a movable depositing trough which has a concave and / or inclined receiving tray which is designed to receive a winding spool from the pushing-off device and to transmit the impulse movement to the winding spool.

[0031] The depositing device has a depositing trough which, together with the receiving tray, defines a depositing ramp which enables depositing into the winding spool storage via a rolling movement of the winding spool.

[0032] In a further particularly preferred embodiment of the doffing device, the depositing trough can be positioned on a support frame of the depositing device with a predetermined receiving inclination, so that a winding spool can be stored in a predetermined position on the depositing trough, and can be pivoted to a depositing inclination, so that the winding spool can be deposited in the winding spool storage.

[0033] When the position of the depositing tray or the associated receiving tray is changed from the receiving inclination to the depositing inclination, the winding spool is given an impulse movement so that the winding spool can roll into the adjacent winding spool storage.

[0034] According to a special embodiment of the doffing device, the depositing trough can be adjusted to various predetermined height positions by means of a lifting device, in particular a scissor-linkage lift, so that a height level of the depositing trough can be leveled with the height position of a storage compartment.

[0035] In this case, levelable means in particular an adjustment of the level of the storage tray to the storage compartment.

[0036] By adjusting the height level of the depositing device to the winding spool storage, the unwinding of the winding spools from the depositing trough into the depositing device can be ensured.

[0037] According to a particular embodiment of the doffing device, the winding spool storage device is movable from an intermediate storage position on the winding device into a second storage position which is spaced from the intermediate storage position, wherein the winding spool storage device is movable, self-movable, movable by means of a hand truck, by means of a hand pallet truck, by means of a vehicle and / or by means of a self-propelled vehicle.

[0038] The winding spool storage unit is preferably designed to be movable. The winding spool storage unit can be equipped with rollers so that it can be manually moved from the intermediate storage position to a storage position. Additionally or alternatively, the winding spool storage unit can be moved using handcarts or industrial trucks.

[0039] In a particularly preferred embodiment of the doffing device, the winding spool storage device has an optically readable code, in particular a barcode, QR code, and / or a transponder for automatic identification and / or localization, for tracking its position.

[0040] In one embodiment, the winding spool storage units can be recognized and identified by the control system of the winding device, for example, via a barcode, QR code, RFID, etc., so that, for example, the spool properties or the winding spools themselves can be assigned to the respective winding spool storage unit. This ensures that the winding spools and their properties can be identified and stored in the subsequent process steps.

[0041] The object with regard to the method is achieved according to the invention with a method having the features of claim 11.

[0042] According to another aspect of the invention, a method is provided for doffing winding spools by means of a doffing device according to at least one of the preceding embodiments, wherein the winding spools are formed in a winding device, comprising the steps:

[0043] Winding a synthetic thread onto an empty tube that is temporarily fixed on a winding spindle,

[0044] Moving a depositing device from the parking position to the depositing position, pushing the winding spool off by means of a pushing device,

[0045] The winding spool is placed on the depositing device and moved into a storage compartment of the winding spool storage unit. The movement of the winding spool into the winding spool storage unit is carried out by means of a pulsed movement of the depositing device and across the peripheral surface of the winding spool.

[0046] Advantageous embodiments of the method result from the features claimed in the embodiments of the method.

[0047] According to a special embodiment of the method, the winding coil storage is moved from the intermediate storage position to a storage position when the winding coil storage is loaded with winding coils.

[0048] The reel spool storage is replaceable. A full reel spool storage is replaced by an empty one.

[0049] In a further particularly preferred embodiment of the method, the winding spool storage is loaded with tubes to fill a tube storage on the winding device.

[0050] When replacing full reel spool storage units with empty ones, the cores required by the winding device can be easily made available to the winding device via an empty reel spool storage unit. This not only removes the produced spools, but also provides a supply of empty cores and / or the necessary packaging material.

[0051] According to a particular embodiment of the method, the number of winding coils arranged on the winding coil storage and / or the winding coil properties of the winding coils arranged on the winding coil storage are assigned to the respective winding coil storage.

[0052] This is accomplished, for example, using transponders, barcodes, and / or QR codes attached to the winding storage device. With regard to the spin-draw texturing device, the object is achieved according to the invention with a spin-draw texturing device having the features of claim 15.

[0053] According to yet another aspect of the invention, a spin-draw texturing device is provided for producing crimped synthetic threads, comprising a spinning device and a plurality of machine devices associated with the spinning device and a plurality of winding devices with a doffing device according to the preceding embodiments, which are configured to carry out the method according to the preceding claims, wherein synthetic threads with a denier in the range from 850 to 4500 dtex, preferably from 850 to 8400 dtex and particularly preferably from 850 to 12000 dtex can be produced by means of the spin-draw texturing device.

[0054] Advantageous embodiments of the spin-draw texturing device result from the features claimed in the following embodiments of the spin-draw texturing device.

[0055] According to a particular embodiment of the spin-draw texturing device, the winding bobbin storage device is arranged laterally offset in the longitudinal direction to the winding device, so that doffing of winding bobbins to the intermediate storage device can be carried out during the winding of a new bobbin to a full bobbin and / or wherein the laying device is arranged substantially parallel to the pushing-off device.

[0056] The doffing device according to the invention, the associated method and the associated spin-draw texturing device are explained in more detail below using associated embodiments with reference to the attached figures.

[0057] They represent:

[0058] Fig.1 schematically shows a side view of a spin-draw texturing device with a spinning device, a cooling device, a drawing device and a winding device together with a doffer device, depositing device and intermediate storage device according to the invention,

[0059] Fig. 2 is a front view of the spin-draw texturing device shown in Fig. 1 and the associated doffer device, intermediate storage device and deflection device,

[0060] Fig. 3 and

[0061] Fig. 4 schematic views of the laying device together with the winding device, wherein the laying device is shown in a laying position and a receiving position of winding spools,

[0062] Fig.5,

[0063] Fig. 6 and

[0064] Fig. 7 schematic views of the depositing of a winding spool into the intermediate storage device in different storage compartments at different level positions,

[0065] Fig.8 and

[0066] Fig. 9 different embodiments of the depositing device and the intermediate storage device, wherein in Fig. 8 the storage compartment is height adjustable and in Fig. 9 the depositing device is height adjustable, and

[0067] Fig. 10 is a schematic block diagram of the method according to the invention for doffing winding coils.

[0068] Fig.l shows a schematic side view of a spin-draw texturing device with a first embodiment of the doffing device 99 according to the invention.

[0069] Fig. 2 shows a front view of the spin-draw texturing device of Fig. 1 and its associated machine devices 6, 13, 17, 99, 100. The machine devices 1, 6, 13, 17, 99, 100 may include a spinning device 1, a cooling device 6, a take-off drawing device 13, a winding device 17, a doffing device 99, and an intermediate storage device 100.

[0070] The spinning device 1 is designed to form synthetic threads 5.1, 5.2, 5.3 from a thermoplastic melt from a melt source which is supplied via an inlet 2.

[0071] The spinning device 1 shown in Fig. 1 and 2 has, in the embodiment shown there, three spinnerets 4.1, 4.2 and 4.3 arranged next to one another.

[0072] The number of spinnerets 4.1, 4.2 and 4.3 in the spinning device 1 is exemplary here and can also have a larger number of spinnerets per spinning position so that a larger number of threads can be produced.

[0073] The spinnerets 4.1, 4.2, and 4.3 are arranged in a heatable spinneret 3. The spinneret 3 feeds the thermoplastic melt to the spinnerets via an inlet 2 through feed lines (not shown). The spinnerets 4.1 to 4.3 have a plurality of capillaries through which the melt is extruded into a plurality of filaments, which then combine to form a thread 5.1, 5.2, and 5.3.

[0074] A cooling device 6 is positioned below the spinning beam 3 in the direction of yarn travel. The cooling device 6 cools the extruded filaments of the threads 5.1, 5.2, and 5.3. The cooling device 6 has a cooling shaft 7, which is located directly below the spinnerets 4.1 to 4.3.

[0075] In the illustrated embodiment, the cooling device 6 is a cross-flow blower, in which a cooling stream is generated by means of a laterally arranged blower chamber 8 and is directed onto the filament strands of the threads 5.1 to 5.3. For combining the filaments generated by the spinnerets 4.1 to 4.3 into a thread 5.1 to 5.3, a collecting thread guide 9.1 to 9.3 and, if appropriate, a preparation device are arranged for each filament strand 29 at a predetermined distance in the thread running direction below the spinnerets 4.1 to 4.3 and below the cooling device 6.

[0076] 10.1 to 10.3. The collecting thread guides 9.1 to 9.3 are preferably positioned centrally to the spinnerets 4.1 to 4.3.

[0077] In an embodiment not shown here, the preparation devices 10.1 to 10.3 and the collecting thread guides 9.1 to 9.3 can be combined with one another in such a way that the merging of the filament strands and the preparation can be carried out in combination on a so-called pin oiler.

[0078] The arrangement of the preparation device 10.1 to 10.3 and the collecting thread guide 9.1 to 9.3 can be seen in particular from Fig. 2.

[0079] After the cooling device 6, the collecting yarn guides 9.1 to 9.3 and preparation devices 10.1 to 10.3, the take-off drawing device 13 follows.

[0080] The take-off drawing device 13, which is shown in the embodiment of the spin-draw texturing device in Figs. 1 and 2, has a predetermined number of first take-off godets 11.1 to 11.3, which are held together with the associated drives 23 at a predetermined position by means of a godet carrier 25.

[0081] In the embodiment shown in Fig. 1 and 2, overrun rollers 12.1 to 12.3 are respectively assigned to the take-off godets 11.1 to 11.3. The take-off godets 11.1 to 11.3 are also referred to below as first take-off godets 11.1 to 11.3, since in the spin-draw texturing device in the embodiment shown in Fig. 1 and 2, a further pair of second take-off godets is arranged after the texturing device 27.

[0082] 31.1 to 31.2 follows.

[0083] The second take-off godets 31.1 to 31.2 also have associated overrun rollers. Each of the first take-off godets 11.1 to 11.3 is assigned a drive 23. The drives 23 of the first take-off godets 11.1 to 11.3 can be driven and controlled independently of one another, so that the take-off of the filaments from the spinnerets 4.1 to 4.3 can be adapted as needed to the respective spinneret 4.1 to 4.3 and the resulting extruded melt.

[0084] The filament strand 29 drawn off from the first take-off godets 11.1 to 11.3 is guided via a multiple thread guide 15, which has a thread guide for each individual thread

[0085] 5.1 to 5.3, is fed to a predetermined number of stretching godets 14.1 to 14.4.

[0086] The take-off drawing device 13 has several drawing godets 14.1 to 14.4 for the collective drawing of the threads 5.1 to 5.3. Preferably, two drawing godets 14.1 and 14.2, as well as two 14.3 and 14.4, form a godet pair, on which the threads are guided in multiple wraps. The drawing godets 14.3 and 14.4 are driven at a higher peripheral speed than the drawing godets 14.1 and 14.2, so that the threads are drawn between the drawing godets 14.2 and 14.3. For this purpose, each drawing godet 14.1 to 14.4 is assigned a separate drive 42.

[0087] For the sake of simplicity, only the drives 24 of the stretching godets are shown in Fig. 1

[0088] 14.1 to 14.2.

[0089] Preferably, the drawing godets 14.1 to 14.4 additionally have a heatable godet jacket so that the synthetic threads 5.1 and 5.2 can be prepared for the drawing process.

[0090] After the synthetic threads 5.1 to 5.3 have been drawn by means of the take-off drawing device 13, they are crimped and textured in a crimping device 26. The crimping device has a texturing device 27 and a cooling roller 28. The crimping device 26 preferably has a predetermined number of texturing devices 27, which corresponds to the number of synthetic threads 5.1 to 5.3 to be textured. In the texturing device 27, the synthetic threads 5.1 to 5.3 are upset by means of a stuffer box. The upset synthetic threads 5.1 to 5.3 are then guided over a cooling roller 28, on the circumference of which three thread tracks are formed for each synthetic thread to receive thread plugs 30.1 to 30.3 formed thereby.

[0091] The yarn plugs 30.1 to 30.3 are cooled at the periphery of the cooling roller 28. The cooling roller 28 is driven by a separate drive (not shown here).

[0092] After the synthetic threads 5.1 to 5.3 have been crimped in the crimping device 26, they are drawn off by means of a predetermined number of second draw-off godets 31.1 to 31.2 to draw off the synthetic threads 5.1 to 5.3. This drawing off process allows the crimping of the synthetic threads 5.1 to 5.3 to be at least partially removed.

[0093] The second take-off godets 31.1 and 31.2 are also driven independently of each other, whereby the corresponding drives are not shown in Fig. 1 and Fig. 2.

[0094] Positioned between the take-off godets 31.1 and 31.2 is an interlacing device 32, which has three separate interlacing channels for treating the yarn sheet 29, in which each of the synthetic yarns 5.1 to 5.3 is interlaced individually. Interlacing in the interlacing device 29 is necessary to create, in addition to crimping, an intensive interlacing of the synthetic yarns 5.1 to 5.3.

[0095] The synthetic threads 5.1 to 5.3 are then fed to a winding device 17 via a deflection roller 16.

[0096] In the winding device 17, the intermingled and crimped threads 5.1 to 5.3 are wound side by side onto a separate tube 13 to form a winding spool 20. For winding by means of the winding device 17, the winding device 17 has two winding spindles 19.1 and 19.2, which are individually drivable and are rotatably arranged projecting from a winding turret 20.

[0097] A corresponding number of tubes 18 are positioned and secured on the respective winding spindles 19.1 and 19.2 for each winding station W1, W2, W3. The tubes 18 are secured to the respective winding spindles 19.1 and 19.2 of the winding device 17 by a clamping device (not shown), so that during winding, the tubes 18 are releasably secured to the winding spindles 19.1 and 19.2, respectively. The fixation is released when the winding spools 20 have been wound into full spools 22.1 to 22.2 and can be removed from the associated winding spindles 19.1 and 19.2, respectively.

[0098] Once a tube 18 has been wound into a full bobbin 22.1 to 22.2, it is removed from the winding spindle 19.1 to 19.2 arranged in the doffing position by means of a doffing device 99 and an associated push-off device 170. Meanwhile, the other winding spindle 19.2 or 19.1 is in the winding position, as shown, for example, in Fig. 1. In Fig. 1, for example, the winding spindle 19.2 is in the winding position and the winding spindle 19.1 is in the doffing position.

[0099] The winding device 17 has a traversing device 40 for winding the synthetic threads 5.1 to 5.3, which has a separate traversing device at each winding point W1, W2, W3, so that the synthetic thread 5.1 to 5.3 can be wound on the tube 18 to form a full bobbin 20.

[0100] Hereinafter, the full bobbin 20 is more generally referred to as a winding bobbin 20. The winding bobbin 20 refers to both a short bobbin and a full bobbin. A winding bobbin 20 can be referred to as a short bobbin 21.1 to 21.3 if the winding process must be terminated prematurely and its diameter has not reached the diameter of a full bobbin 22.1 to 22.3. A full bobbin 22.1 to 22.3 has the desired diameter. However, the short bobbin 21.1 to 21.2 must also be removed from the respective winding spindle 19.1 or 19.2 and accordingly temporarily stored in an intermediate storage device 100. The machine frame 95 of the winding device 17 further comprises a winding turret 33, with which the winding spindles 19.1 and 19.2 can be rotated into the respective winding position or doffing position.

[0101] On the winding spindle 19.1 shown in Fig. 1 and Fig. 2, full bobbins 22.1 to 22.2 are shown, which can be removed from the winding spindle 19.1 by means of the push-off device 170. For this purpose, the fixing device of the winding spindle 19.1 is released so that the full bobbins 22.1 to 22.3 can be removed from the winding spindle 19.1.

[0102] Previously, a depositing device 150 is moved from a parking position P to a depositing position A.

[0103] In the embodiment of the depositing device 150 shown in Figs. 1 and 2, the depositing device 150 is arranged below the winding turret 33, so that the depositing device 150 does not require any unnecessary space in the parking position P. The depositing device 150 is arranged in the parking position P below the winding spindles 19.1 and 19.2 of the winding device 17 and is positioned in the depositing position A in front of an end section E of the associated winding spindle 19.1 or 19.2, as shown, for example, in Fig. 3.

[0104] The depositing device 150 has a support frame 154 on which a receiving tray 155 is arranged. The receiving tray 155 has a concave inner surface in which the full bobbins 20 can be deposited. The receiving tray 155 is concavely shaped such that the wound bobbins 20 are held in a predetermined position at the end of the depositing tray 154, so that subsequent depositing in an intermediate storage device 100 can be carried out safely and inexpensively.

[0105] The support frame 154 of the depositing device 500 is height-adjustable. In the illustrated embodiment, the height adjustment of the depositing tray 154 and the associated receiving tray 155 can be achieved by means of a scissor-type linkage 156, which can be raised to a predetermined level position N, for example, using a linkage actuator 157, such as a pneumatically or hydraulically controlled piston.

[0106] This may be necessary, for example, if a storage compartment 110 of the intermediate storage device 110 is already occupied and the winding spool 20 is to be moved into a still free storage compartment above the occupied storage compartment 110.

[0107] To move the depositing device 150, the support frame is mounted on casters 158 and can be moved back and forth between the parking position P and the depositing position by means of a pushing device 152. In the depositing position A, the receiving tray 155 and depositing trough 154 are arranged opposite the end section E of the associated winding spindle 19.1 or 19.2 in such a way that the full bobbins 22 or wound bobbins 20 are deposited by the pushing device 170 into the receiving tray 155. If necessary, the depositing device 150 is raised to an associated level position N, so that the full bobbins 22 or wound bobbins 22 can be easily deposited on the depositing trough 154, as shown by way of example in Fig. 4.

[0108] When the winding spools 20 are positioned in the depositing device 150 and the associated depositing trough 154 and receiving tray 155, the full spool 21 or the winding spool 20 is deposited in an intermediate storage device 100 according to the invention. This offers the advantage that the full spools 22 can be temporarily stored, eliminating the need to interrupt the winding process and simultaneously allowing the winding spindles 19.1 or 19.2 to be reloaded with empty tubes 18.

[0109] Furthermore, a full spool 22 can be stored temporarily in a relatively short time, which is particularly advantageous in fast winding processes.

[0110] This reduces the workload on personnel, and thanks to this automated intermediate storage, inspection of the intermediate storage device and / or replacement of the intermediate storage device 100 with a new one that is not yet in use is only necessary at long intervals. Figures 5 to 7 illustrate the depositing of a reel spool 20 into the reel spool storage 101 of the intermediate storage device 100 by means of the depositing device 150.

[0111] The intermediate storage device 100, as shown in Figs. 1 to 7, comprises a winding spool storage 101 defined by a predetermined number of storage compartments 110. The storage compartments 110 are defined by a storage carrier 102 and a cross member 104.

[0112] The cross member 104 is held by the storage carrier 102, as shown, for example, in Figs. 5 to 7.

[0113] In the exemplary embodiment of the intermediate storage device 100 shown in Fig. 1, which is also shown in Figs. 5 to 6, the intermediate storage device 100 is movable. For this purpose, the intermediate storage device 100 has casters 103 on the lower end portion of the cross member 104, which allow the intermediate storage device 100 to be moved.

[0114] This can be done, for example, with a handcart, an industrial truck, and / or a self-propelled vehicle 200. The self-propelled vehicle, as shown in Fig. 1, has drive rollers 201 and a lifting device 203, so that the intermediate storage device 100 can be moved from an intermediate storage position ZW to a storage position.

[0115] In an embodiment of the intermediate storage device 101 not shown, the shelf-shaped intermediate storage device 100 may also not have casters 103. In this case, the intermediate storage device can be moved to the end position, for example, with a hand-held lifting truck and / or moved with the conveyor devices already described above, if these can lift the intermediate storage device 100.

[0116] In a further embodiment not shown, the intermediate storage device 100 can also be designed as a self-propelled vehicle so that the intermediate storage device 100 moves to its assigned storage position when completely filled.

[0117] In Fig. 5, the depositing device 150 has already been moved into the depositing position A, so that the depositing trough 154 is arranged opposite and parallel to the associated winding storage 101 and the winding spool 20 can be unrolled by means of the depositing trough 154 by means of a pulse via the receiving tray 155 defined by the depositing trough 154 into the associated storage compartment 110 of the intermediate storage device 100.

[0118] Due to the advantageous concave shape of the receiving tray 155, the winding spool 20 is already arranged at a predetermined position in the depositing tray 104, in particular opposite and adjacent to the intermediate storage device 100 and the storage compartment 110. By applying a pulse, as shown in Fig. 6, the winding spool 20 can be easily unwound into the associated storage compartment 110.

[0119] The pulse generation can be caused, for example, by the depositing trough 154 or the receiving tray 156 being moved from its receiving inclination a1, as shown in Fig. 5, into the depositing inclination a2, as shown in Fig. 6.

[0120] As a result, the winding spool 20 experiences an impulse movement due to the tilting movement K of the receiving tray 156 and the winding spool 20 can unwind over its circumference U.

[0121] For this purpose, corresponding actuators can be provided on the support frame 153 of the depositing device 51.

[0122] In an embodiment not shown, additional sliding devices, which act essentially horizontally, can also cause a corresponding unwinding movement R, so that the winding spool can unwind along its circumference U into the associated storage compartment 110. In addition, the depositing device 150 is also height-adjustable with the aid of the scissor-linkage lifter 156. If, for example, the lower storage compartment 110 is already occupied with winding spools 20, the height Ha of the depositing trough can be adjusted accordingly and a correspondingly suitable level position N can be moved so that the depositing trough 154 or the associated receiving tray 155 has been raised to a corresponding position Ha, so that unwinding from the receiving tray 155 at height H into the storage compartment 110 is possible.

[0123] The rolling is again carried out by an associated impulse movement, as already explained above.

[0124] The receiving tray 156 is shaped accordingly so that the winding spool 20 rests securely in the position shown in Figs. 5 and 7 and only rolls into the storage compartment by a corresponding impulse movement such as the tilting movement K.

[0125] To improve the unwinding into the associated storage compartment, the cross members 104 can be inclined in a corresponding ramp-like manner, so that the winding spool 20 rolls towards the storage carrier 102 and also lies adjacent to an already deposited winding spool 20, so that rolling out of the intermediate storage device 100 can be avoided.

[0126] When each winding spool storage 101 of the intermediate storage device 100 is loaded in all storage compartments 110, each with three winding stations 20, for example, the intermediate storage device 100 can be moved from its intermediate storage position ZW to a second storage position. A self-propelled vehicle 200, such as a self-propelled robot with drive rollers 201 and a lifting device 203, can be used to relocate the intermediate storage device 100, as shown in Fig. 1, for example. The intermediate storage device 100 is moved by the self-propelled vehicle 200 from the intermediate storage position ZW to another storage position. The movement of the intermediate storage device 100 can also be carried out by means of other industrial trucks that have their own drive.In the simplest version, a simple handcart with a corresponding lifting device can also be used to move the intermediate storage device 100, in particular if the intermediate storage device does not have castors 103.

[0127] In Figs. 8 and 9, two embodiments of loading the storage compartments 110 of the intermediate storage device 100 are shown.

[0128] In Fig. 8, the storage compartments 110 of the intermediate storage device are movable on the storage carrier 102, similar to a paternoster, and their height can be adjusted via a corresponding lifting device. This has the advantage that the deposit tray 154 does not need to be additionally height-adjustable. Only the storage compartments 110 need to be moved to the appropriate level so that the winding spool 20 can be unrolled from the deposit tray 154 into the associated storage compartment 110. The height adjustability of the storage compartments 110 is indicated by the double arrow.

[0129] Fig. 9 shows an embodiment in which the storage tray is height-adjustable in order to be positioned on the position of the respective storage compartment 110.

[0130] The winding storage 101 of the intermediate storage device 100, or the intermediate storage device 100 alone, can be equipped with optically readable and / or transponder-identifiable radio frequency transmitters and receivers for tracking its position, so that the position and orientation of the respective intermediate storage device 100 can be localized and the winding spools 200 arranged at the respective winding storage position can also be assigned and stored. This can be necessary and helpful, in particular, for the localization, tracking, and properties of the winding spool 20 or the intermediate storage device 100 for controlling the automated doffing device.

[0131] Fig. 6 schematically shows a block diagram of a method for doffing winding spools 20 using the buffer device 100 described in the previous embodiments. In the method for doffing winding spools 20, the doffing device 99, as already explained above in the various embodiments, is preferably used.

[0132] In a first method step S1, the synthetic thread 5.1 to 5.3 is wound onto an empty tube 18 to form a winding spool 20, the empty tube 18 being temporarily fixed on a winding spindle 19.1 or 19.2.

[0133] In a subsequent method step S2, the depositing device 150 is moved from the parking position P into the depositing position A, preferably when the winding spool 20 has been wound into a full spool 22.

[0134] After the empty tube 18 has been formed into a winding spool 20 by winding the synthetic thread 5.1 to 5.3, the winding spool 20 is pushed off by means of the pushing-off device 170 in method step S3.

[0135] In this process step, the winding spindle 19.1 or 19.2 is in a doffing position and the fixing device of the tubes 18 of the winding spindle 19.1 to 19.2 is released so that winding spools 20 can be pushed off.

[0136] In step S4, the winding spool 20 is deposited on the depositing device 150, which is already in the depositing position A.

[0137] After the winding spool 20 has been deposited in the depositing device 150, the winding spool 20 can be moved into a storage compartment 110 of the winding spool storage 101 in step S5 if the depositing device 150 has previously been moved to a suitable height position in an intermediate step, so that the winding spool can roll into the winding storage 110 by means of an impulse movement of the depositing device over the circumferential surface U of the winding spool 20 into the storage compartment 110. The intermediate step is necessary, for example, if a free, higher-positioned storage compartment 110 not occupied by a winding spool 20 is to be accessed. The movement of the winding spool 20 takes place in step S6 with an impulse movement, so that the winding spool 20 rolls over its circumference U into the storage compartment.

[0138] If the winding spool storage 101 is occupied with a winding spool 20 in all storage compartments 110, in a further step the winding spool storage 101 or the intermediate storage device 100 can be moved from the intermediate storage position ZW on the winding device 70 into another storage position.

[0139] By moving the full buffer 100, a new empty buffer device 100 can be brought to the buffer position ZW.

[0140] In addition, in a further step, a further intermediate storage device 100 can be provided with unloaded tubes 18 to replace the loaded intermediate storage device 100 during the movement to the intermediate storage position ZW, which tubes can then be accommodated in a tube storage (not shown) of the spool storage device 70.

[0141] During the above-mentioned method steps S1 to S6, the number of winding spools 20 arranged on the winding spool storage 101 and / or their properties of the winding spools 20 arranged on the winding spool storage 101 can be assigned to the respective winding spool storage 101, simultaneously or subsequently. This can, for example, be temporarily stored and assigned on the transponders or barcodes provided on the intermediate storage device 100, which can then also be stored and tracked in a cloud or database, so that the entire development of the winding spool 20 can be traced from its origin in the spinning device 1 to its winding and further processing.

[0142] The method described above and the associated doffing device are not limited to a spin-draw texturing device, but can also be used in other spinning devices in which synthetic fibers and even natural fibers are wound onto a tube via a winding device. Intermediate storage in an intermediate storage device 100 can be particularly important for threads that have a very short winding time, so that doffing and further winding are only possible by intermediate storage of the respective winding bobbins.

[0143] This has the advantage that the winding process of the winding device does not have to be interrupted and the winding process can therefore be continued continuously by temporarily storing the winding spools.

[0144] List of reference symbols

[0145] 1 spinning device

[0146] 2 Inlet

[0147] 3 spinning beams

[0148] 4.1, 4.2, 4.3 spinneret

[0149] 5.1, 5.2, 5.3 thread

[0150] 6 Cooling device

[0151] 7 Cooling shaft

[0152] 8 Blow chamber

[0153] 9.1, 9.2, 9.3 Collecting thread guide

[0154] 10.1, 10.2, 10.3 Preparation equipment

[0155] 11.1, 11.2, 11.3 first take-off godet

[0156] 12.1, 12.2, 12.3 Overrun roller

[0157] Withdrawal device

[0158] 14.1, 14.2, 14.3 Stretching godet

[0159] 15 multiple thread guides

[0160] 16 pulley

[0161] 17 Winding device

[0162] 18 sleeve

[0163] 19.1, 19.2 Winding spindle

[0164] 20 winding spools

[0165] 21.1, 21.2, 21.3 Short coil

[0166] 22.1, 22.2, 22.3 Full coil

[0167] 24 drive

[0168] 25 godet carriers

[0169] 26 Crimping device

[0170] 27 Texturing device

[0171] 28 Cooling roller

[0172] 29 thread sheets

[0173] 30.1, 30.2, 30.3 Thread plugs

[0174] 32 Swirling device

[0175] 31.1, 31.2 second take-off godet

[0176] 33 Winding turret 50 Pressure roller

[0177] 40 Traversing device

[0178] 95 machine frame

[0179] 99 doffing device

[0180] 100 buffer device

[0181] 101 winding spool storage

[0182] 102 storage media

[0183] 103 Castor

[0184] 104 cross members

[0185] 110 storage compartment

[0186] 150 Abi egeein chtung

[0187] 152 Thrust device

[0188] 153 Support frame

[0189] 154 Deposit tray

[0190] 155 Recording tray

[0191] 156 Scissor lifts

[0192] 157 Linkage actuator

[0193] 158 Castor

[0194] 170 discharge device

[0195] 200 AGV, self-driving vehicle

[0196] 201 F ahr antri eb sr ol 1 en

[0197] 203 Lifting device

[0198] A drop-off position

[0199] Ha altitude level

[0200] H Height position

[0201] K Tilt position

[0202] P Parking position

[0203] N Level position

[0204] Wl, W2, W3 winding stations

[0205] ZW Intermediate position al Pick-up inclination a2 Deposit inclination

Claims

Patent claims 1. Doffing device (99) for removing winding spools (21.1 - 21.3) with a synthetic thread (5.1, 5.2, 5.3), which can be wound by a winding device (17) with a winding spindle (19.1, 19.2) onto a sleeve (18) to form at least one winding spool (21.1, 21.3, 21.3), comprising an intermediate storage device (100), wherein the intermediate storage device (100) comprises: a pushing device (170) for pushing off winding spools from the winding spindle (19.1, 19.2), a winding spool store (101) for temporarily storing the winding spool (21.1, 21.3, 21.3), a depositing device for depositing the winding spool (21.1, 21.3, 21.3) in the winding spool store (100), characterized in that by means of an impulse movement of the depositing device (150), the winding spool can be deposited in the winding spool store over the circumferential surface (U) of the winding spool.

2. Doffing device (99) according to claim 1, characterized in that the laying device (150) is movable between a parking position (P), in which the laying device (150) is parked at the winding device (7), and a laying position (A), in which the winding spool (21.1, 21.3, 21.3) can be laid down by the laying device (150) into the winding spool store (100), and / or wherein in the parking position (P) the laying device (150) is positioned below the winding spindle (19.1, 19.2.) and in the laying position (A) the laying device (150) is positioned in front of an end section (E) of the winding spindle.

3. Doffing device (99) according to at least one of the preceding claims 1 or 2, characterized in that the depositing device (150) is movable from the depositing position (A) into a tilting position (K), so that a winding spool (21.1, 21.3, 21.3) on the depositing device (150) into the winding spool storage (101) can be filed.

4. Doffing device (99) according to at least one of the preceding claims, characterized in that the laying device (150) is a pushing device device (152) for moving the depositing device (150) from the parking position (P) into the depositing position (A) and / or a lifting device (160) for adjusting the height of the depositing device (150) relative to the winding spool storage (100) into a level position (N).

5. Doffing device according to at least one of the preceding claims, characterized in that the winding spool storage (101) has a plurality of storage compartments (110) and / or the storage compartment (110) of the winding spool storage (101) is height-adjustable by means of a lifting device, in particular a paternoster, so that the storage compartment (100) can be adjusted to the level of the depositing device (150).

6. Doffing device according to at least one of the preceding claims, characterized in that the depositing device (150) has a movable depositing trough (154) which has a concave and / or inclined receiving tray (155) which is designed to receive a winding spool (21.1, 21.3, 21.3) from the pushing-off device (150) and to transmit the impulse movement to the winding spool.

7. Doffing device according to at least one of the preceding claims, characterized in that the depositing trough (154) can be positioned on a support frame (153) of the depositing device (150) with a predetermined receiving inclination (a1), so that a winding spool (21.1, 21.3, 21.3) can be stored in a predetermined position on the depositing trough (154) and can be pivoted to a depositing inclination (a2), so that the winding spool (21.1, 21.3, 21.3) can be deposited in the winding spool storage by means of the impulse movement, in particular a tilting movement.

8. Doffing device according to at least one of the preceding claims, characterized in that the depositing trough (154) can be adjusted into various predetermined height positions by means of a lifting device (156), in particular a scissor-type linkage lift (156), so that a height level (Ha) of the depositing gain (154) with the height position (H) can be leveled by a storage compartment (110).

9. Doffing device according to at least one of the preceding claims, characterized in that the winding spool storage (101) is movable from an intermediate storage position on the winding device (17) into a second storage position which is spaced from the intermediate storage position, wherein the winding spool storage (101) is movable, self-movable, by means of a hand truck, by means of a hand pallet truck, by means of a vehicle and / or by means of a self-propelled vehicle (200).

10. Doffing device according to at least one of the preceding claims, characterized in that the winding spool storage (1.01) has an optically readable code, in particular a barcode, QR code, and / or a transponder for automatic identification and / or localization for tracking its position.

11. A method for doffing winding spools by means of a doffing device (99) according to at least one of the preceding claims, wherein the winding spools (20) are formed in a winding device (17), comprising the steps of: winding (S1) a synthetic thread (5.1-5.3) onto an empty tube (18) which is temporarily fixed on a winding spindle (19.1, 19.2), Moving (S2) the depositing device (150) from the parking position (P) into the depositing position (A), pushing (S3) the winding spool by means of a pushing device (170), depositing (S4) the winding spool (20) on the depositing device, moving (S5) the winding spool into a storage compartment (110) of the winding spool storage (101), characterized in that the movement of the winding spool into the winding spool storage (101) is carried out (S6) by means of an impulse movement of the depositing device (150) and over the circumferential surface (U) of the winding spool (20).

12. Method according to claim 11, characterized in that the winding spool storage is moved from the intermediate storage position (ZW) to a storage position when the winding spool storage is loaded with winding spools.

13. Method according to at least one of the preceding claims 11 or 12, characterized in that the winding spool store is loaded with tubes (18) for filling a tube store on the winding device (17).

14. Method according to at least one of the preceding claims 11 to 13, characterized in that the number of winding coils arranged on the winding coil storage and / or the winding coil properties of the winding coils arranged on the winding coil storage are assigned to the respective winding coil storage.

15. Spin-draw texturing device for producing crimped synthetic threads (5.1, 5.2, 5.3) with a spinning device (1) and several machine devices (6, 13, 17, 26, 99, 100) assigned to the spinning device (1) and a plurality of winding devices (17) with a doffing device (99) according to the preceding claims, which are set up to carry out the method according to the preceding claims 11 to 14, wherein synthetic threads with a denier in the range from 850 to 4500 dtex, preferably from 850 to 8400 dtex and particularly preferably from 850 to 12000 dtex can be produced by means of the spin-draw texturing device.

16. Spin-draw texturing device according to claim 15, characterized in that the winding bobbin storage (101) is arranged laterally offset in the longitudinal direction to the winding device (17), so that a doffing of winding bobbins to the intermediate storage device (100) can be carried out during the winding of a new bobbin to a full bobbin and / or wherein the laying device (150) is arranged substantially parallel to the pushing device (170).

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